Question

Names of simple positive ions (cations) are derived from those of their parent elements and simply add the word ion. For example, when a sodium atom loses an electron, it becomes a sodium ion (Na⁺). A magnesium atom (Mg), on losing two electrons, becomes a magnesium ion (Mg²+). When a metal can form more than one ion, the charges on the different ions are denoted by Roman numerals in parentheses.

For example, Fe²+ is iron(II) ion and Fe³+ is iron(III) ion. Using this information, write the symbol for the following ions:
Titanium(IV)
Enter the chemical symbol of the ion.
a) Ti⁴+
b) Ti³+
c) Ti²+
d) Ti¹+

Answer 1

The symbol for the Titanium(IV) ion is “Ti⁴+”, as Titanium(IV) indicates that titanium has a +4 charge. The charge is represented as a superscript after the chemical symbol.

Step-by-step explanation:

When naming ions, for simple positive ions (cations), we use the name of the parent element and add 'ion'. For cations with multiple charges, the specific charge is indicated using Roman numerals in parentheses. The naming of these ions follows the Stock system.

Considering titanium can form multiple positive ions, and you are asked for Titanium(IV), you would be referring to the titanium cation with a +4 charge. Using the information provided, the correct symbol for the Titanium(IV) ion is Ti⁴+.

It's important to note that the charge of the ion comes after the element symbol, not before, and is indicated by a superscript. In the case of magnesium, when it loses two electrons, it forms a magnesium cation, represented as Mg²+.